It pretty much straight forward. It helps out a lot if you get a spring compressor for the front. But I have seen, and helped out guys with out the tool. (just plan on bleeding a little bit

)
Sounds like its going to be you first time doing this...
Should take you about an hour on the rears (complete)
The front can take you 1.5 to 3 hours depending on problems.
Next time you will able to do it in half the time.
Plan a weekend around it, just in case...(for the first time)
Don't know what you will find...
Good luck